The statistical significance between groups was determined using either unpaired or paired tests.
The Student's t-test was used to compare data between the groups, and 95% confidence interval of the difference between groups was determined.
Statistical significance between groups was determined by Student's t test.
The statistical significance of differences in survival between groups was determined using a log-rank test.
Statistical significance between groups was determined using the GraphPad Prism software.
The statistical significance of differences between groups was determined using a Kruskal-Wallis non-parametric test.
Significance between groups was determined by One-way ANOVA using the Tukey test.
The statistical significance of differences between groups was determined using the program GraphPad Prism 4.0.
Statistical difference between groups was determined by one-way analysis of variance follow by a Tukey multiple comparison test.
The significance of differences between groups was determined using the unpaired, two-sided Student's t test, and P values <0.05 were considered significant different.
Statistical significance between groups was determined by analysis of variance (ANOVA) followed by Tukey's multiple comparison test with statistical significance set at p<0.05.
